His chemistry teacher might've acted out on his hand fetish well enough to have a small collection in his fridges but the guy was born with mutilation fetishes and was also moulded by it. There's no way he could've won over him.
It'll be a game of cat and mouse between Morino Komi-san and Mr. Name I Didn't Get but they'd make a pretty good team judging from how their first case turned out.